fix: history load notifies and never overwrites unreadable file; dictionary keeps ids across external edits, undo safety

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-01 16:04:01 +02:00
parent 5542f9cf70
commit 31c34a1d4a
8 changed files with 150 additions and 6 deletions
@@ -161,16 +161,23 @@ public final class DictionaryViewModel: ObservableObject {
    }

    public func undo() {
-        guard let snapshot = undoStack.popLast() else { return }
-        canUndo = !undoStack.isEmpty
+        guard let snapshot = undoStack.last else { return }
        do {
            try store.apply { $0 = snapshot }
+            undoStack.removeLast()
+            canUndo = !undoStack.isEmpty
        } catch {
            errorMessage = error.localizedDescription
        }
        reload()
    }

+    /// The file was edited elsewhere: older snapshots no longer describe it, so undo is dropped.
+    public func externalChangeDetected() {
+        undoStack.removeAll()
+        canUndo = false
+    }
+
    private func mutate(_ change: (inout DictionaryFile) -> Void) {
        let snapshot = store.file
        do {